using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Reflection;
using System.Text;

namespace XKPlatform.Common
{
    public abstract class SqlHelper
    {
        public static string ConnectionString
        {
            set { }
            get
            {
                Console.WriteLine("SqlHelper:" + HttpContextCore.ConnectionStrings);
                if (!string.IsNullOrEmpty(HttpContextCore.ConnectionStrings))
                {
                    //FileLogHelper.SaveLog("ConnectionStrings", HttpContextCore.ConnectionStrings);
                    return HttpContextCore.ConnectionStrings;
                }
                else
                {
                    //FileLogHelper.SaveLog("ConnectionStrings", HttpContextCore.Configuration["ConnectionStrings:DataContext"]);
                    return "";//HttpContextCore.Configuration["ConnectionStrings:DataContext"];
                }
            }
        }

        public static string ThirdPartyConStr
        {
            get
            {
                if (!string.IsNullOrEmpty(HttpContextCore.ThirdPartyConStr))
                {
                    return HttpContextCore.ThirdPartyConStr;
                }
                else
                {
                    return HttpContextCore.Configuration["ConnectionStrings:OrginalDataContext"];
                }
            }
        }

        #region 公用方法

        public static int InsertSql<T>(T t) where T : class
        {

            var props = typeof(T).GetProperties();

            List<string> keys = new List<string>();
            List<string> values = new List<string>();
            List<SqlParameter> _params = new List<SqlParameter>();

            foreach (PropertyInfo pi in props)
            {
                var value = pi.GetValue(t, null);
                if (value != null)
                {
                    keys.Add(pi.Name);
                    values.Add("@" + pi.Name);
                    _params.Add(new SqlParameter("@" + pi.Name, value));
                }
            }

            StringBuilder sql = new StringBuilder();
            sql.Append("Insert into " + typeof(T).Name);
            sql.Append("(" + string.Join(",", keys) + ")");
            sql.Append(" values(" + string.Join(",", values) + ")");
            return SqlHelper.ExecuteSql(sql.ToString(), _params.ToArray());
        }

        public static int InsertSql<T>(T t, string[] notInsert) where T : class
        {

            var props = typeof(T).GetProperties();

            List<string> keys = new List<string>();
            List<string> values = new List<string>();
            List<SqlParameter> _params = new List<SqlParameter>();

            foreach (PropertyInfo pi in props)
            {
                var value = pi.GetValue(t, null);
                if (value != null && !((IList)notInsert).Contains(pi.Name))
                {
                    keys.Add(pi.Name);
                    values.Add("@" + pi.Name);
                    _params.Add(new SqlParameter("@" + pi.Name, value));
                }
            }

            StringBuilder sql = new StringBuilder();
            sql.Append("Insert into " + typeof(T).Name);
            sql.Append("([" + string.Join("],[", keys) + "])");
            sql.Append(" values(" + string.Join(",", values) + ")");
            return SqlHelper.ExecuteSql(sql.ToString(), _params.ToArray());
        }

        public static int UpdateSql<T>(T t, string key) where T : class
        {

            var props = typeof(T).GetProperties();

            List<string> values = new List<string>();
            List<SqlParameter> _params = new List<SqlParameter>();

            foreach (PropertyInfo pi in props)
            {
                var value = pi.GetValue(t, null);
                if (value != null)
                {
                    if (pi.Name != key)
                        values.Add(pi.Name + "=@" + pi.Name);
                    _params.Add(new SqlParameter("@" + pi.Name, value));
                }
            }

            StringBuilder sql = new StringBuilder();
            sql.Append("update " + typeof(T).Name);
            sql.Append(" set " + string.Join(",", values));
            sql.Append(" where " + key + "=@" + key);
            return SqlHelper.ExecuteSql(sql.ToString(), _params.ToArray());
        }

        public static int UpdateSql<T>(T t, string key, string[] notUpdate) where T : class
        {

            var props = typeof(T).GetProperties();

            List<string> values = new List<string>();
            List<SqlParameter> _params = new List<SqlParameter>();

            foreach (PropertyInfo pi in props)
            {
                var value = pi.GetValue(t, null);
                if (!((IList)notUpdate).Contains(pi.Name))
                {
                    if (pi.Name != key)
                        values.Add(pi.Name + "=@" + pi.Name);
                    _params.Add(new SqlParameter("@" + pi.Name, value));
                }
            }

            StringBuilder sql = new StringBuilder();
            sql.Append("update " + typeof(T).Name);
            sql.Append(" set " + string.Join(",", values));
            sql.Append(" where " + key + "=@" + key);
            return SqlHelper.ExecuteSql(sql.ToString(), _params.ToArray());
        }


        public static bool ColumnExists(string tableName, string columnName)
        {
            string sql = "select count(1) from syscolumns where [id]=object_id('" + tableName + "') and [name]='" + columnName + "'";
            object res = GetSingle(sql);
            if (res == null)
            {
                return false;
            }
            return Convert.ToInt32(res) > 0;
        }

        public static int GetMinID(string FieldName, string TableName, string ParentColumn = "", string parentId = "")
        {
            string strsql = "select min(" + FieldName + ") from " + TableName;
            List<SqlParameter> listParam = new List<SqlParameter>();
            if (!string.IsNullOrEmpty(ParentColumn))
            {
                strsql += string.Format(@" where {0}=@Parent ", ParentColumn);
                listParam.Add(new SqlParameter("@Parent", parentId));
            }
            SqlParameter[] param = listParam.ToArray();
            object obj = SqlHelper.GetSingle(strsql, param);
            if (obj == null)
            {
                return 0;
            }
            else
            {
                return int.Parse(obj.ToString());
            }
        }

        public static int GetMaxID(string FieldName, string TableName, string ParentColumn = "", string parentId = "")
        {
            string strsql = "select max(" + FieldName + ")+1 from " + TableName;
            List<SqlParameter> listParam = new List<SqlParameter>();
            if (!string.IsNullOrEmpty(ParentColumn))
            {
                strsql += string.Format(@" where {0}=@Parent ", ParentColumn);
                listParam.Add(new SqlParameter("@Parent", parentId));
            }
            SqlParameter[] param = listParam.ToArray();
            object obj = SqlHelper.GetSingle(strsql, param);
            if (obj == null)
            {
                return 1;
            }
            else
            {
                return int.Parse(obj.ToString());
            }
        }

        public static bool Exists(string strSql)
        {
            object obj = SqlHelper.GetSingle(strSql);
            int cmdresult;
            if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
            {
                cmdresult = 0;
            }
            else
            {
                cmdresult = int.Parse(obj.ToString());
            }
            if (cmdresult == 0)
            {
                return false;
            }
            else
            {
                return true;
            }
        }

        public static bool Exists(string strSql, params SqlParameter[] cmdParms)
        {
            object obj = SqlHelper.GetSingle(strSql, cmdParms);
            int cmdresult;
            if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
            {
                cmdresult = 0;
            }
            else
            {
                cmdresult = int.Parse(obj.ToString());
            }
            if (cmdresult == 0)
            {
                return false;
            }
            else
            {
                return true;
            }
        }

        public static bool Exists(string strSql, string connstr, params SqlParameter[] cmdParms)
        {
            object obj = SqlHelper.GetSingle(strSql, connstr, cmdParms);
            int cmdresult;
            if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
            {
                cmdresult = 0;
            }
            else
            {
                cmdresult = int.Parse(obj.ToString());
            }
            if (cmdresult == 0)
            {
                return false;
            }
            else
            {
                return true;
            }
        }

        public static bool TabExists(string TableName)
        {
            string strsql = "select count(*) from sysobjects where id = object_id(N'[" + TableName + "]') and OBJECTPROPERTY(id, N'IsUserTable') = 1";
            //string strsql = "SELECT count(*) FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[" + TableName + "]') AND type in (N'U')";
            object obj = SqlHelper.GetSingle(strsql);
            int cmdresult;
            if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
            {
                cmdresult = 0;
            }
            else
            {
                cmdresult = int.Parse(obj.ToString());
            }
            if (cmdresult == 0)
            {
                return false;
            }
            else
            {
                return true;
            }
        }

        public static bool FiledExists(string TableName, string Filed)
        {
            string strsql = "select  count(*) from sysobjects a,syscolumns b where a.id=b.id and b.name='" + Filed + "' and a.type='u' and a.name='" + TableName + "'";
            //string strsql = "SELECT count(*) FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[" + TableName + "]') AND type in (N'U')";
            object obj = SqlHelper.GetSingle(strsql);
            int cmdresult;
            if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
            {
                cmdresult = 0;
            }
            else
            {
                cmdresult = int.Parse(obj.ToString());
            }
            if (cmdresult == 0)
            {
                return false;
            }
            else
            {
                return true;
            }
        }
        #endregion

        #region  执行简单SQL语句

        /// <summary>
        /// 执行sql  支持多数据源
        /// </summary>
        /// <param name="SQLString"></param>
        /// <param name="connectionString">空使用默认数据库连接，传值则用新连接</param>
        /// <returns></returns>
        public static int ExecuteSql(string SQLString, string connectionString = "")
        {
            if (string.IsNullOrWhiteSpace(connectionString))
            {
                connectionString = ConnectionString;
            }
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                using (SqlCommand cmd = new SqlCommand(SQLString, connection))
                {
                    try
                    {
                        cmd.CommandTimeout = 600;
                        connection.Open();
                        int rows = cmd.ExecuteNonQuery();
                        return rows;
                    }
                    catch (System.Data.SqlClient.SqlException e)
                    {
                        connection.Close();
                        throw e;
                    }
                }
            }
        }


        /// <summary>
        /// 执行SQL语句，返回影响的记录数
        /// </summary>
        /// <param name="SQLString">SQL语句</param>
        /// <returns>影响的记录数</returns>
        public static int ExecuteSql(string SQLString, params SqlParameter[] cmdParms)
        {

            using (SqlConnection connection = new SqlConnection(ConnectionString))
            {
                using (SqlCommand cmd = new SqlCommand())
                {
                    try
                    {
                        cmd.CommandTimeout = 600;
                        PrepareCommand(cmd, connection, null, SQLString, cmdParms);
                        int rows = cmd.ExecuteNonQuery();
                        cmd.Parameters.Clear();
                        return rows;
                    }
                    catch (System.Data.SqlClient.SqlException e)
                    {
                        throw e;
                    }
                }
            }
        }
        /// <summary>
        /// 支持多数据源执行sql 返回执行行数
        /// </summary>
        /// <param name="SQLString"></param>
        /// <param name="connectionString"></param>
        /// <param name="cmdParms"></param>
        /// <returns></returns>
        public static int ExecuteSql(string SQLString, string connectionString = "", params SqlParameter[] cmdParms)
        {
            if (string.IsNullOrWhiteSpace(connectionString))
            {
                connectionString = ConnectionString;
            }
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                using (SqlCommand cmd = new SqlCommand())
                {
                    try
                    {
                        cmd.CommandTimeout = 600;
                        PrepareCommand(cmd, connection, null, SQLString, cmdParms);
                        int rows = cmd.ExecuteNonQuery();
                        cmd.Parameters.Clear();
                        return rows;
                    }
                    catch (System.Data.SqlClient.SqlException e)
                    {
                        throw e;
                    }
                }
            }
        }

        /// <summary>
        /// 插入sql  支持多数据源
        /// </summary>
        /// <param name="SQLString"></param>
        /// <param name="connectionString"></param>
        /// <param name="cmdParms"></param>
        /// <returns></returns>
        public static int ExecuteInsertSql(string SQLString, string connectionString = "", params SqlParameter[] cmdParms)
        {
            if (string.IsNullOrWhiteSpace(connectionString))
            {
                connectionString = ConnectionString;
            }
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                using (SqlCommand cmd = new SqlCommand())
                {
                    try
                    {
                        cmd.CommandTimeout = 600;
                        SQLString += " SELECT SCOPE_IDENTITY()";
                        PrepareCommand(cmd, connection, null, SQLString, cmdParms);
                        int id = Convert.ToInt32(cmd.ExecuteScalar());
                        cmd.Parameters.Clear();
                        return id;
                    }
                    catch (System.Data.SqlClient.SqlException e)
                    {
                        throw e;
                    }
                }
            }
        }


        public static int ExecuteInsertSql(string SQLString, params SqlParameter[] cmdParms)
        {

            using (SqlConnection connection = new SqlConnection(ConnectionString))
            {
                using (SqlCommand cmd = new SqlCommand())
                {
                    try
                    {
                        cmd.CommandTimeout = 600;
                        SQLString += " SELECT SCOPE_IDENTITY()";
                        PrepareCommand(cmd, connection, null, SQLString, cmdParms);
                        int id = Convert.ToInt32(cmd.ExecuteScalar());
                        cmd.Parameters.Clear();
                        return id;
                    }
                    catch (System.Data.SqlClient.SqlException e)
                    {
                        throw e;
                    }
                }
            }
        }


        /// <summary>
        /// 2012-2-21新增重载，执行SQL语句，返回影响的记录数
        /// </summary>
        /// <param name="connection">SqlConnection对象</param>
        /// <param name="trans">SqlTransaction事件</param>
        /// <param name="SQLString">SQL语句</param>
        /// <returns>影响的记录数</returns>
        public static int ExecuteSql(SqlConnection connection, SqlTransaction trans, string SQLString, string connectionString = "")
        {
            if (string.IsNullOrWhiteSpace(connectionString))
            {
                connectionString = ConnectionString;
            }

            using (SqlCommand cmd = new SqlCommand(SQLString, connection))
            {
                try
                {
                    cmd.Connection = connection;
                    cmd.Transaction = trans;
                    int rows = cmd.ExecuteNonQuery();
                    return rows;
                }
                catch (System.Data.SqlClient.SqlException e)
                {
                    //trans.Rollback();
                    throw e;
                }
            }
        }

        /// <summary>
        /// 2012-2-29新增重载，执行SQL语句，返回影响的记录数
        /// </summary>
        /// <param name="connection">SqlConnection对象</param>
        /// <param name="trans">SqlTransaction对象</param>
        /// <param name="SQLString">SQL语句</param>
        /// <returns>影响的记录数</returns>
        public static int ExecuteSql(SqlConnection connection, SqlTransaction trans, string SQLString, params SqlParameter[] cmdParms)
        {
            using (SqlCommand cmd = new SqlCommand())
            {
                try
                {
                    PrepareCommand(cmd, connection, trans, SQLString, cmdParms);
                    int rows = cmd.ExecuteNonQuery();
                    cmd.Parameters.Clear();
                    return rows;
                }
                catch (System.Data.SqlClient.SqlException e)
                {
                    //trans.Rollback();
                    throw e;
                }
            }
        }


        /// <summary>
        /// 执行带一个存储过程参数的的SQL语句。
        /// </summary>
        /// <param name="SQLString">SQL语句</param>
        /// <param name="content">参数内容,比如一个字段是格式复杂的文章，有特殊符号，可以通过这个方式添加</param>
        /// <returns>影响的记录数</returns>
        public static int ExecuteSql(string SQLString, string content, string connectionString = "")
        {
            if (string.IsNullOrWhiteSpace(connectionString))
            {
                connectionString = ConnectionString;
            }
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                SqlCommand cmd = new SqlCommand(SQLString, connection);
                System.Data.SqlClient.SqlParameter myParameter = new System.Data.SqlClient.SqlParameter("@content", SqlDbType.NText);
                myParameter.Value = content;
                cmd.Parameters.Add(myParameter);
                try
                {
                    connection.Open();
                    int rows = cmd.ExecuteNonQuery();
                    return rows;
                }
                catch (System.Data.SqlClient.SqlException e)
                {
                    throw e;
                }
                finally
                {
                    cmd.Dispose();
                    connection.Close();
                }
            }
        }

        /// <summary>
        /// 执行带一个存储过程参数的的SQL语句。
        /// </summary>
        /// <param name="SQLString">SQL语句</param>
        /// <param name="content">参数内容,比如一个字段是格式复杂的文章，有特殊符号，可以通过这个方式添加</param>
        /// <returns>影响的记录数</returns>
        public static object ExecuteSqlGet(string SQLString, string content, string connectionString = "")
        {
            if (string.IsNullOrWhiteSpace(connectionString))
            {
                connectionString = ConnectionString;
            }
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                SqlCommand cmd = new SqlCommand(SQLString, connection);
                cmd.CommandTimeout = 600;
                System.Data.SqlClient.SqlParameter myParameter = new System.Data.SqlClient.SqlParameter("@content", SqlDbType.NText);
                myParameter.Value = content;
                cmd.Parameters.Add(myParameter);
                try
                {
                    connection.Open();
                    object obj = cmd.ExecuteScalar();
                    if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                    {
                        return null;
                    }
                    else
                    {
                        return obj;
                    }
                }
                catch (System.Data.SqlClient.SqlException e)
                {
                    throw e;
                }
                finally
                {
                    cmd.Dispose();
                    connection.Close();
                }
            }
        }
        /// <summary>
        /// 向数据库里插入图像格式的字段(和上面情况类似的另一种实例)
        /// </summary>
        /// <param name="strSQL">SQL语句</param>
        /// <param name="fs">图像字节,数据库的字段类型为image的情况</param>
        /// <returns>影响的记录数</returns>
        public static int ExecuteSqlInsertImg(string strSQL, byte[] fs, string connectionString = "")
        {
            if (string.IsNullOrWhiteSpace(connectionString))
            {
                connectionString = ConnectionString;
            }

            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                SqlCommand cmd = new SqlCommand(strSQL, connection);
                cmd.CommandTimeout = 600;
                System.Data.SqlClient.SqlParameter myParameter = new System.Data.SqlClient.SqlParameter("@fs", SqlDbType.Image);
                myParameter.Value = fs;
                cmd.Parameters.Add(myParameter);
                try
                {
                    connection.Open();
                    int rows = cmd.ExecuteNonQuery();
                    return rows;
                }
                catch (System.Data.SqlClient.SqlException e)
                {
                    throw e;
                }
                finally
                {
                    cmd.Dispose();
                    connection.Close();
                }
            }
        }


        public static int ExecuteSqlByTime(string SQLString, int Times, string connectionString = "")
        {
            if (string.IsNullOrWhiteSpace(connectionString))
            {
                connectionString = ConnectionString;
            }
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                using (SqlCommand cmd = new SqlCommand(SQLString, connection))
                {
                    try
                    {
                        connection.Open();
                        cmd.CommandTimeout = Times;
                        int rows = cmd.ExecuteNonQuery();
                        return rows;
                    }
                    catch (System.Data.SqlClient.SqlException e)
                    {
                        connection.Close();
                        throw e;
                    }
                }
            }
        }


        /// <summary>
        /// 执行多条SQL语句，实现数据库事务。
        /// </summary>
        /// <param name="SQLStringList">多条SQL语句</param>		
        public static int ExecuteSqlTran(List<String> SQLStringList, string connectionString = "")
        {
            if (string.IsNullOrWhiteSpace(connectionString))
            {
                connectionString = ConnectionString;
            }
            using (SqlConnection conn = new SqlConnection(connectionString))
            {
                conn.Open();
                SqlCommand cmd = new SqlCommand();
                cmd.Connection = conn;
                SqlTransaction tx = conn.BeginTransaction();
                cmd.Transaction = tx;
                string sql = "";
                try
                {
                    int count = 0;
                    for (int n = 0; n < SQLStringList.Count; n++)
                    {
                        string strsql = SQLStringList[n];
                        if (strsql.Trim().Length > 1)
                        {
                            sql = strsql;
                            cmd.CommandText = strsql;
                            count += cmd.ExecuteNonQuery();
                        }
                    }
                    tx.Commit();
                    return count;
                }
                catch (Exception ex)
                {
                    //LogHelper.SaveLog(ex);

                    tx.Rollback();
                    return 0;
                }
            }
        }

        /// <summary>
        /// 执行多条SQL语句，实现数据库事务。
        /// </summary>
        /// <param name="SQLStringList">SQL语句的哈希表（key为sql语句，value是该语句的SqlParameter[]）</param>
        public static void ExecuteSqlTran(Hashtable SQLStringList, string connectionString = "")
        {
            if (string.IsNullOrWhiteSpace(connectionString))
            {
                connectionString = ConnectionString;
            }
            using (SqlConnection conn = new SqlConnection(connectionString))
            {
                conn.Open();
                using (SqlTransaction trans = conn.BeginTransaction())
                {
                    SqlCommand cmd = new SqlCommand();
                    try
                    {
                        //循环
                        foreach (DictionaryEntry myDE in SQLStringList)
                        {
                            string cmdText = myDE.Key.ToString();
                            SqlParameter[] cmdParms = (SqlParameter[])myDE.Value;
                            PrepareCommand(cmd, conn, trans, cmdText, cmdParms);
                            int val = cmd.ExecuteNonQuery();
                            cmd.Parameters.Clear();
                        }
                        trans.Commit();
                    }
                    catch
                    {
                        trans.Rollback();
                        throw;
                    }
                }
            }
        }

        /// <summary>
        /// 执行多条SQL语句，实现数据库事务。
        /// </summary>
        /// <param name="SQLStringList">SQL语句的字典Dictionary（key为sql语句，value是该语句的SqlParameter[]）</param>
        public static void ExecuteSqlTran(Dictionary<string, SqlParameter[]> SQLStringList)
        {
            using (SqlConnection conn = new SqlConnection(ConnectionString))
            {
                conn.Open();
                using (SqlTransaction trans = conn.BeginTransaction())
                {
                    SqlCommand cmd = new SqlCommand();
                    try
                    {
                        //循环
                        foreach (KeyValuePair<string, SqlParameter[]> kv in SQLStringList)
                        {
                            string cmdText = kv.Key.ToString();
                            SqlParameter[] cmdParms = (SqlParameter[])kv.Value;
                            PrepareCommand(cmd, conn, trans, cmdText, cmdParms);
                            int val = cmd.ExecuteNonQuery();
                            cmd.Parameters.Clear();
                        }
                        trans.Commit();
                    }
                    catch
                    {
                        trans.Rollback();
                        throw;
                    }
                }
            }
        }

        /// <summary>
        /// 执行多条SQL语句，实现数据库事务。
        /// </summary>
        /// <param name="SQLStringList">SQL语句的字典Dictionary（key为随机生成，没有用到，，value是字典Dictionary（key为sql语句，value是该语句的SqlParameter[]））</param>
        public static void ExecuteSqlTran(Dictionary<object, Dictionary<string, SqlParameter[]>> execSqlList)
        {
            using (SqlConnection conn = new SqlConnection(ConnectionString))
            {
                conn.Open();
                using (SqlTransaction trans = conn.BeginTransaction())
                {
                    SqlCommand cmd = new SqlCommand();
                    try
                    {
                        foreach (var execSql in execSqlList)
                        {
                            //循环
                            foreach (KeyValuePair<string, SqlParameter[]> kv in execSql.Value)
                            {
                                PrepareCommand(cmd, conn, trans, kv.Key, kv.Value);
                                int val = cmd.ExecuteNonQuery();
                                cmd.Parameters.Clear();
                            }
                        }
                        trans.Commit();
                    }
                    catch
                    {
                        trans.Rollback();
                        throw;
                    }
                }
            }
        }

        public static void ExecuteSqlTran(string sql, List<List<SqlParameter>> sqlParams)
        {
            using (SqlConnection conn = new SqlConnection(ConnectionString))
            {
                conn.Open();
                var trans = conn.BeginTransaction();
                var cmd = new SqlCommand(sql, conn, trans);
                try
                {
                    foreach (var sqlParam in sqlParams)
                    {
                        foreach (var item in sqlParam)
                        {
                            cmd.Parameters.Add(item);
                        }
                        cmd.ExecuteNonQuery();
                        cmd.Parameters.Clear();
                    }
                    trans.Commit();
                }
                catch (Exception ex)
                {
                    trans.Rollback();
                    throw;
                }
                finally
                {
                    conn.Close();
                }
            }
        }

        /// <summary>
        /// 执行多条SQL语句，实现数据库事务。
        /// </summary>
        /// <param name="SQLStringList">SQL语句的哈希表（key为sql语句，value是该语句的SqlParameter[]）</param>
        public static void ExecuteSqlTranWithIndentity(Hashtable SQLStringList)
        {
            using (SqlConnection conn = new SqlConnection(ConnectionString))
            {
                conn.Open();
                using (SqlTransaction trans = conn.BeginTransaction())
                {
                    SqlCommand cmd = new SqlCommand();
                    try
                    {
                        int indentity = 0;
                        //循环
                        foreach (DictionaryEntry myDE in SQLStringList)
                        {
                            string cmdText = myDE.Key.ToString();
                            SqlParameter[] cmdParms = (SqlParameter[])myDE.Value;
                            foreach (SqlParameter q in cmdParms)
                            {
                                if (q.Direction == ParameterDirection.InputOutput)
                                {
                                    q.Value = indentity;
                                }
                            }
                            PrepareCommand(cmd, conn, trans, cmdText, cmdParms);
                            int val = cmd.ExecuteNonQuery();
                            foreach (SqlParameter q in cmdParms)
                            {
                                if (q.Direction == ParameterDirection.Output)
                                {
                                    indentity = Convert.ToInt32(q.Value);
                                }
                            }
                            cmd.Parameters.Clear();
                        }
                        trans.Commit();
                    }
                    catch
                    {
                        trans.Rollback();
                        throw;
                    }
                }
            }
        }

        /// <summary>
        /// 执行一条计算查询结果语句，返回查询结果（object）。
        /// </summary>
        /// <param name="SQLString">计算查询结果语句</param>
        /// <returns>查询结果（object）</returns>
        public static object GetSingle(string SQLString, string connectionString = "")
        {
            if (string.IsNullOrWhiteSpace(connectionString))
            {
                connectionString = ConnectionString;
            }
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                using (SqlCommand cmd = new SqlCommand(SQLString, connection))
                {
                    try
                    {
                        connection.Open();
                        object obj = cmd.ExecuteScalar();
                        if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                        {
                            return null;
                        }
                        else
                        {
                            return obj;
                        }
                    }
                    catch (System.Data.SqlClient.SqlException e)
                    {
                        connection.Close();
                        throw e;
                    }
                }
            }
        }
        public static object GetSingle(string SQLString, int Times)
        {
            using (SqlConnection connection = new SqlConnection(ConnectionString))
            {
                using (SqlCommand cmd = new SqlCommand(SQLString, connection))
                {
                    try
                    {
                        connection.Open();
                        cmd.CommandTimeout = Times;
                        object obj = cmd.ExecuteScalar();
                        if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                        {
                            return null;
                        }
                        else
                        {
                            return obj;
                        }
                    }
                    catch (System.Data.SqlClient.SqlException e)
                    {
                        connection.Close();
                        throw e;
                    }
                }
            }
        }

        /// <summary>
        /// 执行一条计算查询结果语句，返回查询结果（object）。
        /// </summary>
        /// <param name="SQLString">计算查询结果语句</param>
        /// <returns>查询结果（object）</returns>
        public static object GetSingle(string SQLString, params SqlParameter[] cmdParms)
        {
            using (SqlConnection connection = new SqlConnection(ConnectionString))
            {
                using (SqlCommand cmd = new SqlCommand())
                {
                    try
                    {
                        PrepareCommand(cmd, connection, null, SQLString, cmdParms);
                        object obj = cmd.ExecuteScalar();
                        cmd.Parameters.Clear();
                        if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                        {
                            return null;
                        }
                        else
                        {
                            return obj;
                        }
                    }
                    catch (System.Data.SqlClient.SqlException e)
                    {
                        throw e;
                    }
                }
            }
        }

        /// <summary>
        /// 执行一条计算查询结果语句，返回查询结果（object）。
        /// </summary>
        /// <param name="SQLString">计算查询结果语句</param>
        /// <returns>查询结果（object）</returns>
        public static object GetSingle(string SQLString, string connectionString, params SqlParameter[] cmdParms)
        {
            if (string.IsNullOrWhiteSpace(connectionString))
            {
                connectionString = ConnectionString;
            }
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                using (SqlCommand cmd = new SqlCommand())
                {
                    try
                    {
                        PrepareCommand(cmd, connection, null, SQLString, cmdParms);
                        object obj = cmd.ExecuteScalar();
                        cmd.Parameters.Clear();
                        if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                        {
                            return null;
                        }
                        else
                        {
                            return obj;
                        }
                    }
                    catch (System.Data.SqlClient.SqlException e)
                    {
                        throw e;
                    }
                }
            }
        }

        /// <summary>
        /// 2012-2-21新增重载，执行一条计算查询结果语句，返回查询结果（object）。
        /// </summary>
        /// <param name="connection">SqlConnection对象</param>
        /// <param name="trans">SqlTransaction事务</param>
        /// <param name="SQLString">计算查询结果语句</param>
        /// <returns>查询结果（object）</returns>
        public static object GetSingle(SqlConnection connection, SqlTransaction trans, string SQLString, params SqlParameter[] cmdParms)
        {
            using (SqlCommand cmd = new SqlCommand())
            {
                try
                {
                    PrepareCommand(cmd, connection, trans, SQLString, cmdParms);
                    object obj = cmd.ExecuteScalar();
                    cmd.Parameters.Clear();
                    if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                    {
                        return null;
                    }
                    else
                    {
                        return obj;
                    }
                }
                catch (System.Data.SqlClient.SqlException e)
                {
                    //trans.Rollback();
                    throw e;
                }
            }
        }

        /// <summary>
        /// 执行查询语句，返回SqlDataReader ( 注意：调用该方法后，一定要对SqlDataReader进行Close )
        /// </summary>
        /// <param name="strSQL">查询语句</param>
        /// <returns>SqlDataReader</returns>
        public static SqlDataReader ExecuteReader(string strSQL)
        {
            SqlConnection connection = new SqlConnection(ConnectionString);
            SqlCommand cmd = new SqlCommand(strSQL, connection);
            try
            {
                connection.Open();
                SqlDataReader myReader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
                return myReader;
            }
            catch (System.Data.SqlClient.SqlException e)
            {
                throw e;
            }

        }

        /// <summary>
        /// 执行查询语句，返回SqlDataReader ( 注意：调用该方法后，一定要对SqlDataReader进行Close )
        /// </summary>
        /// <param name="strSQL">查询语句</param>
        /// <returns>SqlDataReader</returns>
        public static SqlDataReader ExecuteReader(string SQLString, params SqlParameter[] cmdParms)
        {
            SqlConnection connection = new SqlConnection(ConnectionString);
            SqlCommand cmd = new SqlCommand();
            try
            {
                PrepareCommand(cmd, connection, null, SQLString, cmdParms);
                SqlDataReader myReader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
                cmd.Parameters.Clear();
                return myReader;
            }
            catch (System.Data.SqlClient.SqlException e)
            {
                throw e;
            }
            //			finally
            //			{
            //				cmd.Dispose();
            //				connection.Close();
            //			}	

        }

        /// <summary>
        /// 执行查询语句，返回DataSet
        /// </summary>
        /// <param name="SQLString">查询语句</param>
        /// <returns>DataSet</returns>
        public static DataSet Query(string SQLString, string connectionString = "")
        {
            if (string.IsNullOrWhiteSpace(connectionString))
            {
                connectionString = ConnectionString;
            }
            using (SqlConnection connection = new SqlConnection(connectionString))
            {

                Console.WriteLine("======SQL==========:" + SQLString);
                Console.WriteLine("======connectionString==========:" + SQLString);

                DataSet ds = new DataSet();
                try
                {
                    connection.Open();

                    //sql语句执行容器
                    SqlCommand command = new SqlCommand(SQLString, connection);
                    //定义执行对象（存储过程）
                    command.CommandTimeout = 600;


                    SqlDataAdapter adapter = new SqlDataAdapter(command);
                    adapter.Fill(ds, "ds");
                }
                catch (System.Data.SqlClient.SqlException ex)
                {
                    throw new Exception(ex.Message);
                }
                return ds;
            }

        }
        public static DataSet Query(string SQLString, int Times)
        {
            using (SqlConnection connection = new SqlConnection(ConnectionString))
            {
                DataSet ds = new DataSet();
                try
                {
                    connection.Open();
                    SqlDataAdapter command = new SqlDataAdapter(SQLString, connection);
                    command.SelectCommand.CommandTimeout = Times;
                    command.Fill(ds, "ds");
                }
                catch (System.Data.SqlClient.SqlException ex)
                {
                    throw new Exception(ex.Message);
                }
                return ds;
            }
        }

        /// <summary>
        /// 2012-2-21新增重载，执行查询语句，返回DataSet
        /// </summary>
        /// <param name="connection">SqlConnection对象</param>
        /// <param name="trans">SqlTransaction事务</param>
        /// <param name="SQLString">SQL语句</param>
        /// <returns>DataSet</returns>
        public static DataSet Query(SqlConnection connection, SqlTransaction trans, string SQLString)
        {
            DataSet ds = new DataSet();
            try
            {
                SqlDataAdapter command = new SqlDataAdapter(SQLString, connection);
                command.SelectCommand.Transaction = trans;
                command.Fill(ds, "ds");
            }
            catch (System.Data.SqlClient.SqlException ex)
            {
                throw new Exception(ex.Message);
            }
            return ds;

        }


        /// <summary>
        /// 执行查询语句，返回DataSet
        /// </summary>
        /// <param name="SQLString">查询语句</param>
        /// <returns>DataSet</returns>
        public static DataSet Query(string SQLString, params SqlParameter[] cmdParms)
        {
            using (SqlConnection connection = new SqlConnection(ConnectionString))
            {
                SqlCommand cmd = new SqlCommand();
                PrepareCommand(cmd, connection, null, SQLString, cmdParms);


                using (SqlDataAdapter da = new SqlDataAdapter(cmd))
                {
                    DataSet ds = new DataSet();
                    try
                    {
                        da.SelectCommand.CommandTimeout = 600;
                        da.Fill(ds, "ds");
                        cmd.Parameters.Clear();
                    }
                    catch (System.Data.SqlClient.SqlException ex)
                    {
                        throw new Exception(ex.Message);
                    }
                    return ds;
                }
            }
        }

        /// <summary>
        /// 执行查询语句，返回DataSet
        /// </summary>
        /// <param name="SQLString">查询语句</param>
        /// <returns>DataSet</returns>
        public static DataSet Query(string SQLString, string conStr, params SqlParameter[] cmdParms)
        {
            if (string.IsNullOrWhiteSpace(conStr))
            {
                conStr = ConnectionString;
            }
            using (SqlConnection connection = new SqlConnection(conStr))
            {
                SqlCommand cmd = new SqlCommand();
                PrepareCommand(cmd, connection, null, SQLString, cmdParms);


                using (SqlDataAdapter da = new SqlDataAdapter(cmd))
                {
                    DataSet ds = new DataSet();
                    try
                    {
                        da.SelectCommand.CommandTimeout = 600;
                        da.Fill(ds, "ds");
                        cmd.Parameters.Clear();
                    }
                    catch (System.Data.SqlClient.SqlException ex)
                    {
                        throw new Exception(ex.Message);
                    }
                    return ds;
                }
            }
        }


        /// <summary>
        /// 2012-2-21新增重载，执行查询语句，返回DataSet
        /// </summary>
        /// <param name="connection">SqlConnection对象</param>
        /// <param name="trans">SqlTransaction事务</param>
        /// <param name="SQLString">查询语句</param>
        /// <returns>DataSet</returns>
        public static DataSet Query(SqlConnection connection, SqlTransaction trans, string SQLString, params SqlParameter[] cmdParms)
        {
            SqlCommand cmd = new SqlCommand();
            PrepareCommand(cmd, connection, trans, SQLString, cmdParms);
            using (SqlDataAdapter da = new SqlDataAdapter(cmd))
            {
                DataSet ds = new DataSet();
                try
                {
                    da.Fill(ds, "ds");
                    cmd.Parameters.Clear();
                }
                catch (System.Data.SqlClient.SqlException ex)
                {
                    //trans.Rollback();
                    throw new Exception(ex.Message);
                }
                return ds;
            }
        }

        #endregion

        #region 存储过程操作

        /// <summary>
        /// 执行存储过程，返回SqlDataReader ( 注意：调用该方法后，一定要对SqlDataReader进行Close )
        /// </summary>
        /// <param name="storedProcName">存储过程名</param>
        /// <param name="parameters">存储过程参数</param>
        /// <returns>SqlDataReader</returns>
        public static SqlDataReader RunProcedure(string storedProcName, IDataParameter[] parameters)
        {
            SqlConnection connection = new SqlConnection(ConnectionString);
            SqlDataReader returnReader;
            connection.Open();
            SqlCommand command = BuildQueryCommand(connection, storedProcName, parameters);
            command.CommandType = CommandType.StoredProcedure;
            returnReader = command.ExecuteReader(CommandBehavior.CloseConnection);
            return returnReader;

        }

        /// <summary>
        /// 执行存储过程
        /// </summary>
        /// <param name="storedProcName">存储过程名</param>
        /// <param name="parameters">存储过程参数</param>
        /// <param name="tableName">DataSet结果中的表名</param>
        /// <returns>DataSet</returns>
        public static DataSet RunProcedure(string storedProcName, IDataParameter[] parameters, string tableName)
        {
            using (SqlConnection connection = new SqlConnection(ConnectionString))
            {
                DataSet dataSet = new DataSet();
                connection.Open();
                SqlDataAdapter sqlDA = new SqlDataAdapter();
                sqlDA.SelectCommand = BuildQueryCommand(connection, storedProcName, parameters);
                sqlDA.Fill(dataSet, tableName);
                connection.Close();
                return dataSet;
            }
        }

        public static DataSet RunProcedure(string storedProcName, IDataParameter[] parameters, string tableName, int Times)
        {
            using (SqlConnection connection = new SqlConnection(ConnectionString))
            {
                DataSet dataSet = new DataSet();
                connection.Open();
                SqlDataAdapter sqlDA = new SqlDataAdapter();
                sqlDA.SelectCommand = BuildQueryCommand(connection, storedProcName, parameters);
                sqlDA.SelectCommand.CommandTimeout = Times;
                sqlDA.Fill(dataSet, tableName);
                connection.Close();
                return dataSet;
            }
        }

        /// <summary>
        /// 执行存储过程，返回影响的行数		
        /// </summary>
        /// <param name="storedProcName">存储过程名</param>
        /// <param name="parameters">存储过程参数</param>
        /// <param name="rowsAffected">影响的行数</param>
        /// <returns></returns>c
        public static int RunProcedure(string storedProcName, IDataParameter[] parameters, out int rowsAffected, string conStr = "")
        {
            if (string.IsNullOrWhiteSpace(conStr))
            {
                conStr = ConnectionString;
            }
            using (SqlConnection connection = new SqlConnection(conStr))
            {
                int result;
                connection.Open();
                SqlCommand command = BuildIntCommand(connection, storedProcName, parameters);
                rowsAffected = command.ExecuteNonQuery();
                result = (int)command.Parameters["ReturnValue"].Value;
                //Connection.Close();
                return result;
            }
        }

        /// <summary>
        /// 执行存储过程，返回影响的行数		
        /// </summary>
        /// <param name="storedProcName">存储过程名</param>
        /// <param name="parameters">存储过程参数</param>
        /// <param name="rowsAffected">影响的行数</param>
        /// <returns></returns>
        public static void RunProcedure_new(string storedProcName, int several, ref int Out1, ref string Out2, string conStr = "")
        {
            Out1 = 0;
            Out2 = string.Empty;
            if (string.IsNullOrWhiteSpace(conStr))
            {
                conStr = ConnectionString;
            }
            using (SqlConnection connection = new SqlConnection(conStr))
            {
                connection.Open();
                SqlParameter[] sqlParme = new SqlParameter[3];
                sqlParme[0] = new SqlParameter("@several", SqlDbType.Int);
                sqlParme[0].Direction = ParameterDirection.Input;
                sqlParme[0].Value = several;
                sqlParme[1] = new SqlParameter("@Out1", SqlDbType.Int);
                sqlParme[1].Direction = ParameterDirection.Output;
                sqlParme[2] = new SqlParameter("@Out2", SqlDbType.Int);
                sqlParme[2].Direction = ParameterDirection.Output;
                SqlCommand command = BuildQueryCommand(connection, storedProcName, sqlParme);
                command.ExecuteNonQuery();
                Out1 = int.Parse(command.Parameters[1].Value.ToString());
                Out2 = command.Parameters[2].Value.ToString();
                command.Dispose();
                connection.Close();
                //Connection.Close();
            }
        }
        #endregion

        #region 批量插入
        /// <summary>
        /// 
        /// </summary>
        /// <param name="dataTable"></param>
        /// <param name="tableName"></param>
        /// <param name="batchSize"></param>
        /// <param name="conStr"></param>
        /// <returns></returns>
        public static int BatchInsert(DataTable dataTable, string tableName, int batchSize = 20000, string conStr = "")
        {
            if (dataTable == null || dataTable.Rows == null || dataTable.Rows.Count == 0)
                return 0;

            if (string.IsNullOrWhiteSpace(conStr))
            {
                conStr = ConnectionString;
            }
            using (SqlConnection connection = new SqlConnection(conStr))
            {
                int result = 0;
                try
                {
                    connection.Open();
                    using (SqlBulkCopy bulk = new SqlBulkCopy(connection, SqlBulkCopyOptions.CheckConstraints, null)//KeepIdentity
                    {
                        DestinationTableName = tableName,
                        BatchSize = batchSize,
                        BulkCopyTimeout = 3600
                    })
                    {
                        bulk.WriteToServer(dataTable);//插入数据
                        bulk.Close();
                        result = batchSize;
                    }
                }
                catch (Exception ex)
                {
                    throw ex;
                }
                finally
                {
                    connection.Close();
                }
                return result;
            }
        }

        public static int BatchInsert(SqlConnection connection, SqlTransaction trans, DataTable dataTable, string tableName, int batchSize = 10000)
        {
            if (dataTable == null || dataTable.Rows == null || dataTable.Rows.Count == 0)
                return 0;
            int result = 0;
            try
            {
                using (SqlBulkCopy bulk = new SqlBulkCopy(connection, SqlBulkCopyOptions.CheckConstraints, trans)//KeepIdentity
                {
                    DestinationTableName = tableName,
                    BatchSize = batchSize,
                    BulkCopyTimeout = 3600
                })
                {
                    bulk.WriteToServer(dataTable);//插入数据
                    bulk.Close();
                    result = batchSize;
                }

            }
            catch (Exception ex)
            {
                throw ex;
            }
            return result;
        }

        #endregion

        #region 内置方法

        private static void PrepareCommand(SqlCommand cmd, SqlConnection conn, SqlTransaction trans, string cmdText, SqlParameter[] cmdParms)
        {
            if (conn.State != ConnectionState.Open)
                conn.Open();
            cmd.Connection = conn;
            cmd.CommandText = cmdText;
            if (trans != null)
                cmd.Transaction = trans;
            cmd.CommandType = CommandType.Text;//cmdType;
            if (cmdParms != null)
            {
                //--------------begin 打印sql add  by  szr 2020-3-18
                string logSql = cmdText;
                try
                {
                    for (int index = 0; index < cmdParms.Length; index++)
                    {
                        logSql = logSql.Replace(cmdParms[index].ParameterName, "'" + cmdParms[index].SqlValue + "'");
                    }
                }
                catch (Exception ex)
                {

                    Console.WriteLine("SQLError:" + ex.Message.ToString());
                }
                Console.WriteLine("======SQL==========:" + logSql);
                //-------------end
                foreach (SqlParameter parameter in cmdParms)
                {
                    if ((parameter.Direction == ParameterDirection.InputOutput || parameter.Direction == ParameterDirection.Input) &&
                        (parameter.Value == null))
                    {
                        parameter.Value = DBNull.Value;
                    }
                    cmd.Parameters.Add(parameter);
                }
            }
        }

        /// <summary>
        /// 构建 SqlCommand 对象(用来返回一个结果集，而不是一个整数值)
        /// </summary>
        /// <param name="connection">数据库连接</param>
        /// <param name="storedProcName">存储过程名</param>
        /// <param name="parameters">存储过程参数</param>
        /// <returns>SqlCommand</returns>
        private static SqlCommand BuildQueryCommand(SqlConnection connection, string storedProcName, IDataParameter[] parameters)
        {
            SqlCommand command = new SqlCommand(storedProcName, connection);
            command.CommandType = CommandType.StoredProcedure;
            foreach (SqlParameter parameter in parameters)
            {
                if (parameter != null)
                {
                    // 检查未分配值的输出参数,将其分配以DBNull.Value.
                    if ((parameter.Direction == ParameterDirection.InputOutput || parameter.Direction == ParameterDirection.Input) &&
                        (parameter.Value == null))
                    {
                        parameter.Value = DBNull.Value;
                    }
                    command.Parameters.Add(parameter);
                }
            }

            return command;
        }


        /// <summary>
        /// 创建 SqlCommand 对象实例(用来返回一个整数值)	
        /// </summary>
        /// <param name="storedProcName">存储过程名</param>
        /// <param name="parameters">存储过程参数</param>
        /// <returns>SqlCommand 对象实例</returns>
        private static SqlCommand BuildIntCommand(SqlConnection connection, string storedProcName, IDataParameter[] parameters)
        {
            SqlCommand command = BuildQueryCommand(connection, storedProcName, parameters);
            command.Parameters.Add(new SqlParameter("ReturnValue", SqlDbType.Int, 4));
            return command;
        }

        #endregion
    }
}
